How should I decide who to play? I am in a points league, and I struggle with who to play on a night in night out basis. I have tried leaving my percieved top 3 outfielders in all the time, regardless of the pitcher, but I have started to play matchups depending on the pitcher and past histories of each player. Please give me some suggestions on strategy?

It backfired on me tonight, I played Klesko because he is facing a right handed lesser known pitcher, and Andersen is up against Mussina and Andersen goes yard for a 2 run shot in the second. Fantasy can be fun!